Yan, W.-Y., C.-C. Chen, Y.-Y. Wu, and C.-C. Ting. “Investigating the Optimum Efficiency of Acoustoelectric Conversion Plate Devices”. International Journal of Engineering and Technology Innovation, Vol. 4, no. 2, Apr. 2014, pp. 86-95, https://ojs.imeti.org/index.php/IJETI/article/view/133.